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Reseach Article

Estimation of Transient over Voltages in Gas Insulated busduct from 220kv Gas Insulated Substation

by M. Kondalu, Gillella Sreekanth Reddy, P.S.Subramanyam
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 20 - Number 8
Year of Publication: 2011
Authors: M. Kondalu, Gillella Sreekanth Reddy, P.S.Subramanyam
10.5120/2458-2813

M. Kondalu, Gillella Sreekanth Reddy, P.S.Subramanyam . Estimation of Transient over Voltages in Gas Insulated busduct from 220kv Gas Insulated Substation. International Journal of Computer Applications. 20, 8 ( April 2011), 1-5. DOI=10.5120/2458-2813

@article{ 10.5120/2458-2813,
author = { M. Kondalu, Gillella Sreekanth Reddy, P.S.Subramanyam },
title = { Estimation of Transient over Voltages in Gas Insulated busduct from 220kv Gas Insulated Substation },
journal = { International Journal of Computer Applications },
issue_date = { April 2011 },
volume = { 20 },
number = { 8 },
month = { April },
year = { 2011 },
issn = { 0975-8887 },
pages = { 1-5 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume20/number8/2458-2813/ },
doi = { 10.5120/2458-2813 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:07:14.150665+05:30
%A M. Kondalu
%A Gillella Sreekanth Reddy
%A P.S.Subramanyam
%T Estimation of Transient over Voltages in Gas Insulated busduct from 220kv Gas Insulated Substation
%J International Journal of Computer Applications
%@ 0975-8887
%V 20
%N 8
%P 1-5
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The transient over voltages are generated in gas insulated substations (GIS) during switching operation of substations in the order of a few nanoseconds. These transients have traveling wave behavior and travel to external systems through discontinuities and interface such as enclosures, bushings, cable joints etc. Depending up on configuration of the GIS and the amplitude of the electric and magnetic fields could be of the order of a few tens of kilovolts per meter and a few hundreds of amps per meter respectively. These very fast transient over (VFTO) voltages create critical situations in protection circuit and control circuit and makes raise faults in cables, transformers and secondary circuits, which result in malfunctioning of the primary equipment. The suppression of VFTO is very important in GIS systems. In this paper, included estimation of transient voltages in the switching operations has been calculated due to transient field with respect to 220kv gas insulated substation during switching operation. The effect of Transient field have been analyzed and clearly demonstrated for substation by develop of suitable simulation model to estimate over transient voltages. The proposed approach successfully implemented in the platform of MATLAB software.

References
  1. L. G. Christophorou, J. K. Olthoff, R. J. Van Brunt, “SF6 and the Electric Power Industry”, IEEE Electrical Insulation Magazine, DEIS, 1997, pp. 20-24.
  2. G.V.Nagesh Kumar J.Amarnath, B.P.Singh, K.D.Srivatsava., “Influence of Power frequency and Impulse voltages on particle movement in Gas Insulated Bus duct (GIB) with epoxy coatings”. at National Seminar on Insulating materials for the Power Industry, organized by Central Power Research Institute, Bangalore during 26-27 August, 2004
  3. G.V.Nagesh Kumar, J.Amarnath, B.P.Singh, K.D.Srivatsava “Particle movement in a 245 KV, 300 KV and 400 KV Gas Insulated Substations with and without dielectric coating enclosure” National Conference APSC 2004 NIT, Rourkela
  4. Boggs SA., Chu F.Y. and Pujimotor N. (IYXZ), 'Disconnect Switch Induced Transients and Trapped Charge in GIs', EEE Trans. PAS, Vol. PAS-101, No. IO, pp 3593-3601.
  5. Mohana Rao M., Naidu M.S. (199% 'Estimation of Fast Transient Overvoltages in the case of Disconnnector operation in a GIS', 3d workshop & conference on EHV Technology, IISC Bangalore.
  6. J.B. Kim,M.S. Kim,K.S.Park, W.P.Son.,.D.S. Kim, G.S. Kil. Development of monitoring and diagnostic system for SF6 gas insulated switchgear. IEEE Conference Record of the 2002 IEEE International Symposium on Electrical Insulation. Boston, Massachusetts, UnitedStates, pp.453-456,2002.
Index Terms

Computer Science
Information Sciences

Keywords

Gas Insulated Substation (GIS) Transient over voltages switching operations line faults and Control circuitry